Kinetic modeling of CO hydrogenation over a bimetallic Co/Ni catalyst in fixed bed reactor

سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 553

فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

ICHEC07_329

تاریخ نمایه سازی: 25 فروردین 1394

چکیده مقاله:

An active Co-Ni/Al2O3 catalyst was prepared by impregnation method to synthesize light olefins in Fischer-Tropsch Synthesis. The kinetic experiment study was performed in a differential micro- fixed-bed-reactor by varying reaction temperature (230-270 °C), pressure (2-12 bar), gas hourly space velocity (2000-7200 h-1) and H2/CO feed molar ratio (1-3). Based on Langmuir– Hinshelwood–Hougen–Watson (LHHW) approach, seven different two-parameter kinetic models were considered. The kinetic data of this study were fitted fairly well by a simple form that assumed the following kinetically relevant steps: CO dissociated via interaction with adsorbed H; the first hydrogenation of surface carbon step was reversible and fast, while the second was slow and rate determining. The kinetic parameters were determined using Levenberg–Marquardt (LM) method and the apparent activation energy and heat of adsorption were 78.70 kJ/mol and -14.16 kJ/mol, respectively.

نویسندگان

Hossein Atashi

Department of Chemical Engineering, Faculty of Engineering, University of Sistan & Baluchestan

Majid Sarkari

Department of Chemical Engineering, Faculty of Engineering, University of Sistan & Baluchestan

Mohsen Mansouri

Department of Chemical Engineering, Faculty of Engineering, University of Sistan & Baluchestan

Akbar Zare

Department of Chemistry, Faculty of Science, University of Sistan&Baluchestan,

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • V.R. Ahon, P.L.C. Lage, C.D.D. de Souza, F.M. Mendes, M. ...
  • D. Dasgupta, T. Wiltowski, Enhancing gas phase Fi scher-Tropsch synthesis ...
  • A.A. Adesina, Hydrocarbon synthesis via Fischer-Trop sch reaction: travails and ...
  • R. Sethuraman, N. N. Bakhshi, S.P. Katikaneni, R.O. Idem, Production ...
  • L. Sergio, S.L. Gob zalez-Cortes _ M. Serbia, A. Rudolfo-B ...
  • M. Nurunnabi, K. Murata , K. Okabe, I.M, Takahara, Performance ...
  • A.A. Mirzaei, R. Habibpour, E. Kashi, Preparation and optimization of ...
  • M. Feyzi1, A.A. Mirzaei, H.R. Bozorgzadeh, Effects of preparation and ...
  • A. A Mirzaei, A. Beig babaei, M. Galavy, A. Youssefi, ...
  • I.C. Yates, C. N. Satterfield, Intrinsic kinetics of the Fi ...
  • R. Zennaro, M. Tagliabue, C.H. Bartholomew, Kinetics of Fi scher-Tropsch ...
  • T.K. Das, W.A. Conner, J. Li, G. Jacobs, M.E. Dry, ...
  • J. Yang, Y. Liu, J. Chang, Y. Wang, L. Bai, ...
  • H.A.J. Van Dijk, The Fi scher-Tropsch synthesis: A mechanistic study ...
  • E. van Steen, H. Schulz, Polymerisation kinetics of the Fi ...
  • F.G. Botes, B. van Dyk, C. McGregor, The Development of ...
  • _ International Chemical Engineering Congress & Exhibition Kish, Iran, 21-24 ...
  • J. Wang, Physical, Chemical, And Catalytic Properties Of Borided Cobalt ...
  • R.B. Pannell, C.L. Kibby, T.P. Kobylinski, Proc. 7rd Intern. Cong. ...
  • T.K. Das, X. Zhan, J. Li, G. Jacobs, M. E. ...
  • B. _ and B.W. Woj ciechowski, Studies of the Fi ...
  • A. Sari, Y. Zamani, S.A. Taheri, Intrinsic kinetics of Fi ...
  • A.A. Mirzaei, M. Faizi, R. Habibpour, Effect of preparation conditions ...
  • M. Zakeri, A. Samimi, M. Khorram, H. Atashi, A. Mirzaei, ...
  • Mostafa Feyzi, Mohsen Irandoust, Ali Akbar Mirzaei, Effects of promoters ...
  • H. Schulz , G. Schaub, M. Claeys, T. Riedel, Transient ...
  • S.D. Kevan, R.F. Davis, D.H. Rosenblatt, J.G. Tobin, M.G. Mason, ...
  • G.A. Huff Jr. C. N Satterfield, Intrinsic kinetics of the ...
  • M.J. Keyser, R.C. Everson, R.L. Espinoza, Fi scher-Tropsch Kinetic Studies ...
  • نمایش کامل مراجع